Question

The ellipse (x^2)/25 + (y^2)/36 = 1 , can be drawn with parametric equations. If x = r cos(t)

what's r and y??

Answer 1

Radius on X axis is 5, Radius on Y axis is 6, centered at {0,0}

Answer 2

t is any angle theta and r is the radius on the x axis and y can be solved for from the equation of the ellipse.

Answer 3

mathmind, if you substitute x with rcos(t), you can solve for what y is going to be

Answer 4

x=5*cos(t)
y=+-(6/5)*sqrt(25-x^2)

Answer 5

Fruitless yur answer is wrong

Answer 6

actually yu are right
thank you